它(它们)是由谁发明的?

It was / They were invented by … + sb.

它(它们)是由……发明的。

When was it / were they invented by?

它(它们)是什么时候被发明出来的?

It was / They were invented … + time

它(它们)是……被发明出来的。

What is it / are they used for?

它(它们)有什么用途呢?

It is / They are used for + doing sth.

它(它们)被用来……。

任务Ⅱ. 请用下列词汇编几组特殊疑问句。(用被动语态)

electric slippers, adjustable heels, tea, microwave ovens, potato chips

1.__________________________? (When)

2.__________________________? (When)

3.__________________________? (What)

4.__________________________? (Who)

5.__________________________? (Who)

任务Ⅲ. 请仿照sample，编三组对话介绍中国的四大发明吧!( Four Great Inventions )

Clues:

What: paper making

Wh Cai Lun

When: one thousand eight hundred years ago

What…for: record information

A: What do you think is the most important invention?

B: That is paper making.

A: Who was it invented by?

B: It was invented by Cai Lun.

A: When was it invented?

B: It was invented one thousand eight hundred years ago.

A: What is it used for?

B: It is used for recording information.

下面的表格将帮助你完成编对话。

the names of inventionswhenwhobe used for

gun powderTang Dynastydon’t knowexploding, war, fireworks

compassWar DynastyChinese peopleknowing the direction

printingone thousand ,three hundred years agoBi Shengprinting

paper makingone thousand eight hundred years agoCai Lunrecording information

任务Ⅳ. 阅读理解

Future computer

Do you forget to turn off the lights and heateas when you go out of a room? In 2004 it will not matter. They will turn themselves off and on again when your return. You will choose the temperature for each room the lighting and the humidity. (湿度) A sensor will detect ( 察觉) the presence of a human ( and, with luck, ignore ( 忽略 ) the dog!) and turn the systems on, and when the humans leave it will turn them off again.

The sensors will work through the central home computer, and they will do much more than just turn the fire and lights on and off for you. They will detect faulty electrical equipment, wires or switches, separate ( 隔离) them so that they can’t harm anyone, and then warn you that they need repair. They will detect fire and if you are out of the house, the computer will call the fireman. It will also call the police if the sensors detect a robber. This will not be too difficult because the locks on the outside doors will be electronic. You will open them using our personal card------ the one you use for shopping-----may be using a number known only to you.

It will be important to lose the key, and a housebreaker will have to tamper ( 乱动) with the lock or with a window. It is not very difficult to make such tampering send a signal ( 信号 ) to the computer.

The computer will be more than a fireman-policeman-servant. It will be an entertainer, and most of your entertainment will come right into your home. It does now, of course, but by 2040 entertainment will mean much more. You will be able to take part actively, rather than just watching.

Questions:

1.Can the future computer help you turn on and off the lights?

_____________________________________.

2.Can the future computer warn you that the electrical equipment need repair?

_____________________________________.

3.If you are out of the house, who will call the fireman?

_____________________________________.

4.In the future, what will you use to open the door?

_____________________________________.

5.Are you able to take part in the entertainment on computer at home in the future?

_____________________________________.

以上就是初三英语教案之When was it invented教案的全部内容，希望各位老师和学生能够喜欢!